Device and method for making structured surfaces in pipes to reduce the aerodynamic drag
OwnerSebastien Duval, Yves Charron +1inventors
InventorsSebastien Duval, Yves Charron, Nicolas Gautreau
Life of this patent
Estimating the term…
Abstract
The invention relates to a method for making structured surfaces within pipes (1) lined with a coating and wherein fluids such as gas, hydrocarbons or water circulate. The invention consists in irreversibly deforming, during baking and/or drying, the coating internally applied by impression, via expandable means (16), for example a rubber bladder whose outer surface bears the structurations.
Claims17
A method for making structured surfaces on the inner wall of a pipe provided with a coating during baking and/or drying, characterized in that expandable means comprising structurations on the outer surface thereof are arranged inside said pipe, said expandable means are expanded so as to impress said structurations on the coated inner wall, baking and/or drying of the thus irreversibly deformed coating are finalized.
A device for making structured surfaces on the inner wall of a pipe provided with a coating during baking and/or drying, characterized in that it comprises expandable means including on the outer surface thereof structurations and means for expanding said expandable means so as to impress said structurations on the coated inner wall.
Dependencies are inferred from the claim text.